"Everyone talks about leaning on the snowbanks but that is something I am going to have to grasp," Holder said. "It seems pretty foreign doing that because the roads are really narrow and the banks don't look that welcoming to lean against but that is apparently how you do it.
"Being at the snow school gives me the approximate grip levels otherwise you go into this blind.
"I spent a day there basically working out what the limits are. Now it is a case of putting it into practice."
His aim is to just get to the end of the rally and learn as much as possible before taking a more aggressive approach on the gravel events that follow later in the year.
• Kiwi driver Hayden Paddon hasn't put his foot wrong in a visually spectacular start to his 2018 World Rally Championship campaign.
Paddon was seventh-quickest in the super special first stage of Rally Sweden in Karlstad, putting his Hyundai around the bespoke 1.9km course in one minutes 34.8 seconds.
Paddon controlled the vehicle adroitly in icy conditions under floodlights in front of a sizeable crowd.
"It's good to be back, a good way to shake off the cobwebs. Feeling good, feeling relaxed," Paddon wrote on social media.
"We will push tomorrow, hopefully we can be back near front fighting," he said.
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